diff --git a/wxPython/include/wx/wxPython/wxPython_int.h b/wxPython/include/wx/wxPython/wxPython_int.h
index 334fdcd323..cca6beddb2 100644
--- a/wxPython/include/wx/wxPython/wxPython_int.h
+++ b/wxPython/include/wx/wxPython/wxPython_int.h
@@ -1678,6 +1678,7 @@ extern wxPyApp *wxPythonApp;
                 if (wxPyConvertSwigPtr(ro, (void **)&ptr, wxT("wxSize")))       \
                     rval = *ptr;                                                \
                 else if (PySequence_Check(ro) && PyObject_Length(ro) == 2) {    \
+                    PyErr_Clear();                                              \
                     PyObject* o1 = PySequence_GetItem(ro, 0);                   \
                     PyObject* o2 = PySequence_GetItem(ro, 1);                   \
                     if (PyNumber_Check(o1) && PyNumber_Check(o2))               \